C11 steam locomotive of Ōigawa Main Line, at Senzu Station.
DD20 of Ikawa Line, Senzu Station.
The Ōigawa Railway (大井川鐵道 Ōigawa Tetsudō) is a railway company in Shizuoka Prefecture, Japan. The company is commonly known as Daitetsu (大鐵). The company belongs to Meitetsu Group. The first section of its lines opened in 1927.
There are two railway lines operated, Ōigawa Main Line and Ikawa Line. Both lines primary function as sightseeing lines. The former line is known for its steam locomotive trains, while the latter is the only rack railway line in Japan. The company also operates a bus line in Sumatakyō Onsen, Kawanehon. As the company preserves steam locomotives, it has "sister railway" agreements with Brienz Rothorn Bahn, Switzerland, and Alishan Forest Railway, Taiwan. Because of its nostalgic cars and the scenery, Ōigawa Main Line is often used for shootings of films or TV programs, set in pre-war period.